EP 1954217 B1 20180725 - AN ADJUSTMENT DEVICE FOR A LOWER LIMB PROSTHESIS
Title (en)
AN ADJUSTMENT DEVICE FOR A LOWER LIMB PROSTHESIS
Title (de)
REGELEINRICHTUNG FÜR EINE BEINPROTHESE
Title (fr)
DISPOSITIF DE REGLAGE POUR UNE PROTHESE DE MEMBRE INFERIEUR
Publication
Application
Priority
- GB 2006004247 W 20061114
- US 73640905 P 20051114
Abstract (en)
[origin: WO2007054736A2] An hydraulic heel-height adjustment device for a lower limb prosthesis has a foot- mounting component for detachably mounting a prosthetic foot and a shin component pivotally connected to the foot-mounting component allowing angular adjustment of the foot-mounting component relative to the shin component about a heel-height adjustment axis. The relative angular position is set by an hydraulic piston and cylinder assembly which has a chamber in the shin component containing a piston arranged to execute a translational movement in the chamber when adjustment is required. A bypass passage interconnects parts of the chamber on opposite sides of the piston, this passage containing a manually operable valve which is spring-biased towards a closed position. The piston has a piston rod pivotally connected to the foot- mounting component by a pivot joint defining a medial-lateral axis parallel to and spaced from the heel-height adjustment axis. Sufficient clearance between the piston rod and bores in which it is mounted is allowed to permit some misalignment of the piston within the chamber. By providing a piston which executes translational movement inside a component associated with the shin, the device can be located proximally of a foot connection interface without occupying excessive space.
IPC 8 full level
A61F 2/30 (2006.01); A61F 2/50 (2006.01); A61F 2/66 (2006.01); A61F 2/68 (2006.01); A61F 2/74 (2006.01)
CPC (source: EP US)
A61F 2/6607 (2013.01 - EP US); A61F 2/68 (2013.01 - EP); A61F 2/74 (2021.08 - EP); A61F 2/748 (2021.08 - EP); A61F 2/74 (2021.08 - US); A61F 2/748 (2021.08 - US); A61F 2002/30359 (2013.01 - EP US); A61F 2002/5018 (2013.01 - EP US); A61F 2220/0033 (2013.01 - EP US)
Citation (examination)
- US 2605474 A 19520805 - OLIVER WILBUR C
- US 4051558 A 19771004 - VALLOTTON WILBUR C
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007054736 A2 20070518; WO 2007054736 A3 20070726; EP 1954217 A2 20080813; EP 1954217 B1 20180725; JP 2009515628 A 20090416; JP 4975755 B2 20120711; US 2008281435 A1 20081113; US 8641780 B2 20140204
DOCDB simple family (application)
GB 2006004247 W 20061114; EP 06808538 A 20061114; JP 2008540681 A 20061114; US 9335506 A 20061114